Biomedical subjects

C Devillers

Publications and source records attributed to C Devillers.

10 recordsLinked to original sources

PubMed2004

Involvement of reactive oxygen species in the bactericidal activity of activated carbon fibre supporting silver; Bactericidal activity of ACF(Ag) mediated by ROS.

An activated carbon fibre supporting silver (ACF(Ag)) was tested for its antibacterial capacity against Escherichia coli (E. coli). Water that has passed through ACF(Ag) demonstrated strong bactericidal ability. This activity decreased over the time suggesting that generated bactericidal species were short lifespan. Since formation of reactive oxygen species (ROS) might be catalysed by silver impregnated and/or ACF itself, implication of ROS and silver was evaluated by the use of ROS scavengers and a silver ions neutralizing agent. The role of ROS in the E. coli mortality was confirmed by the use of a molecular approach which revealed a strong expression of oxidative stress genes.

Escherichia coli↗

PubMed1989

[Not Available].

Explore the source record for details and available documents.

History, Modern 1601-↗

PubMed1977

[Scanning electron microscopy study of membrane modification of blastomeres in the first stages of ovum development in trout (Salmo irideus Gibb.)].

Our study relates to the development of the membrane relief of the blastomeres of the trout egg from the stage before their division up to gastrulation. The surface of the blastoderm shows first a more or less dense system of crests which by the time of gastrulation are replaced by microvilli distributed over the whole surface of the enveloping layer. The deep blastomeres, loosely connected to each other by lamellipodes and filopodes produce only a few projections of their membranes and these are only semispherical bodies. Possible roles of the microvillosities in the respiratory exchange of the egg and in the motility of the enveloping layer, are considered.

Animals↗

PubMed1977

[Histochemical localization of lactate dehydrogenase in the trout embryo (Salmo irideus, Gibb) during early organogenesis of the cord and the neural tube].

The histochemical study of the LDH in the Trout embryo during the early organogenesis shows a specific localization in notochord cells, in mesodermic cells of the terminal knob and in some prosencephalic neuroblasts. The role of the LDH in the metabolism of NAD as well as in the energetic metabolism of embryonic cells is discussed.

Animals↗

PubMed1976

[Histochemical localization of lactate dehydrogenase in blastomeres during early development of the rainbow trout embryo (Salmo irideus Gibb)].

During the early development of the trout egg, some blastomers display a certain activity of the L.D.H., variable according to their position in the embryo. At the morula stage, the histochemical ltion of those blastomeres. On the contrary, during the gastrula stage, the blastomeres which have a high L.D.H. activity concentrate in the deep layer of the germ, in the "embryonic button", and in the germinal ring.

Age Factors↗

PubMed1972